Brake Lathe 4000B Combination Disc and Drum – Ammco

The AMMCO® 4000B Combination Disc and Drum Brake Lathe has been professionals’ first choice for more than 50 years. And for good reason. It’s simple. It’s fast. It’s very precise. AMMCO combination brake lathes support rotors or drums using a standard one inch arbor. And like all AMMCO brake lathes, it almost never breaks down. It’s no wonder that the 4000B has been a favorite of brake technicians everywhere since its introduction five decades ago.


User Manual 1
User Manual 2

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Brake Lathe 4000B Combination Disc and Drum – AMMCO®

Model #
– 4000B

Part #
– 904000B

Combination Lathe for Brake Drums and Rotors, Less Adapters, 110V, 60Hz (Must be Purchased with a Bench Lathe Adapter Kit)

Product Details

Key Features:

– Two adjustable spindle speeds (if desired) allow for fast turning of small pieces and high-
quality turning of larger pieces.
– Two feed rates allow for quick rough-cut and finer finish-cut settings.
– Forged alloy steel arbor – Two tapered mounting surfaces add stability and handle up to 200 lb.
– Feed slide protection keeps travel surfaces free of dirt and chips.
– Negative rake tool bits standard, provide lower cost of ownership.
– Solid twin cutter tool simultaneously resurfaces both sides of rotor.
– Full-drum support hex boring bar guarantees correct tool angle for drums.
– Infinitely variable drum feed from 0.002″ to 0.02″ per revolution.
– Quick drum-to-rotor changeover.
– User-friendly ergonomics.
– Supports drums or rotors up to 100 lb. using the standard 1″ (25.4 mm) arbor, or up to 200 lb.
– using the optional 1.875″ (47.63 mm) arbor.
– Micrometer-precise depth-of-cut dials embossed in metal and calibrated in both thousandths of
an inch and tenths of a millimeter; easy reset to zero.
– Extended spindle increases drum capacity to 9.875″.

Part Number
– 904000B

Shipping Weight
– 406 lbs.

– High

– Rotor & Drum

Tool Bits (shipped with)
– Negative Rage

– Car & Light Truck

Standard Max Arbor Capacity
– 100 lbs.
Spindle Speed
– 100, 200 RPM

Spindle Bearings
– Bronze Sleeve

Rotor Feed Rate
– .002″/.010″/REV

– Yes

– 1 HP

Max Rotor Thickness
– 1.875″

Max Rotor Face Width
– 3-3/4″

Max Rotor Diameter
– 14.5″

Max Drum Diameter
– No

Max Drum Depth
– 6.875″

Double Taper Arbor
– Yes

Flywheel Service Capable
– Yes

– Yes

Drum Feed Rate
– .002″ to .020″/REV

Heavy Duty Max Arbor Capacity
– 200 lbs

Additional information

Weight 6496 oz


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